National Archives seems the way to go. There is a lady Geri B. on this query site that has access to National Archives info. Sometimes she provides less info then you need and sometime provides quite a bit--just depends. But if she gives you something, you'll at least know whether to contact them or not. At present, she has a broken arm and can't help for a few weeks.http://genforum.genealogy.com/americanrev/
Also there is an instruction for contacting NARA given by another person a year or so ago. I'll try and find it.